Overview

  1. OPC drum

  2. Development roller

  3. Laser unit

  4. Charge roller

  5. Intermediary transfer belt(ITB)

  6. Image transfer roller

  7. Fusing unit

  8. Paper transfer roller(PTR)

The printing process consists of the following steps:

Drum charge Laser exposure Development Transfer Fusing

  • Drum charge …… The charge roller [4] gives an equal charge across the surface of the OPC drum [1].

  • Laser exposure …… Laser unit [3] creates an electrostatic latent image on the OPC drum [1].

  • Development …… The development roller [2] carries toner to the latent image on the OPC drum [1].

  • Image transfer

    Drum-to-belt transfer …… Toner images created on each OPC drum [1] are transferred sequentially to the ITB [5].

    Belt-to-paper transfer …… Toner image on the ITB [5] is transferred onto the paper when the paper passes through the PTR [8].

  • Fusing …… The fusing unit [7] applies heat and pressure to fuse the toner image onto the paper.

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